尿素配施不同用量纳米碳对桃幼树生长及 氮素吸收利用的影响

王国栋,肖元松,彭福田,张亚飞,郜怀峰,孙希武,贺月

Effects of Urea Application Combined with Different Amounts of Nano-Carbon on Plant Growth Along with Nitrogen Absorption and Utilization in Young Peach Trees

WANG GuoDong,XIAO YuanSong,PENG FuTian,ZHANG YaFei,GAO HuaiFeng,SUN XiWu,HE Yue

表3 不同纳米碳施用量对桃树各器官Ndff值、15N分配率的影响

Table 3 Effects of different amounts of nano-carbon on Ndff and 15N distribution of organs in peach trees

项目 Item 处理 Treatments 细根 Fine root 粗根 Coarse root 主干 Trunk 中心干 Central trunk 侧枝 Lateral branch 春梢叶 Spring leaves 秋梢叶 Autumn leaves Ndff (%) CK 0.82±0.04d 0.69±0.03d 0.72±0.05c 0.81±0.03c 0.64±0.04d 0.83±0.03d 0.56±0.03b T1 0.98±0.04c 0.81±0.02c 0.92±0.03a 0.94±0.03b 0.72±0.03c 0.89±0.02c 0.60±0.03b T2 1.05±0.03b 0.84±0.02c 0.92±0.02a 1.02±0.04a 0.85±0.03b 0.95±0.03bc 0.66±0.01a T3 1.09±0.00ab 0.96±0.03b 0.83±0.02b 0.96±0.02b 0.91±0.01a 1.02±0.04b 0.67±0.04a T4 1.13±0.03a 1.03±0.04a 0.74±0.01c 0.85±0.01c 0.95±0.02a 1.09±0.05a 0.68±0.03a 氮素分配率 N distribtion rate (%) CK 16.37±0.49a 12.73±0.98ab 3.69±0.33b 9.98±0.55b 9.69±0.45bc 14.44±0.42a 33.09±0.80a T1 15.98±0.80a 12.99±0.43ab 4.27±0.26a 10.97±0.34a 9.18±0.50c 14.83±0.78a 31.79±1.04ab T2 15.81±0.75a 12.09±0.30b 3.54±0.23b 10.45±0.47ab 10.63±0.59a 15.24±0.75a 32.25±0.82a T3 15.89±1.20a 12.86±0.70ab 2.87±0.11c 9.97±0.49b 10.27±0.39ab 15.73±1.15a 32.40±0.33a T4 16.99±0.98a 13.42±0.67a 2.49±0.05c 9.63±0.11b 10.26±0.17ab 14.99±0.86a 30.50±0.82b